Dev tools · alternatives · 2026
24 alternatives to Mock Jutsu
390+ algorithmic mock data types for developers & testers
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
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Generate custom data & API to build apps in less than 30s
2021 · retool.com · its alternatives →
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Mock Turtle▲72GUI approach to generating realistic mock JSON data
2022 · mockturtle.net · its alternatives →
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Beautiful, cross-platform & open-source tools for debugging, testing and building with HTTP(S), on Windows, Linux & Mac.
2019 · httptoolkit.tech · its alternatives →
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Pollux▲82Fake json data & json server mock API generator with JWT
2021 · mohammedal-rowad.github.io · its alternatives →
- 7CM
2023 · butlermock.online · its alternatives →
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FixtureKit▲31Turn TypeScript interfaces into realistic mock data
Jun 2026 · fixture-kit.vercel.app · its alternatives →
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Decoy▲99Decoy lets developers create mock services locally on macOS. Test webhooks, API wrappers, scrapers and more. No Docker, no Electron, just a beautiful 10 MB native app.
Mar 2026 · decoy-app.com · its alternatives →
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Mockoon is the easiest and quickest way to run mock REST API servers. No remote deployment, no account required, free, open source and cross-platform.
2017 · mockoon.com · its alternatives →
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Generate customized, realistic mock data & APIs, via GPT
2023 · its alternatives →
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Hi HN! I'm Ankit, the founder of Beeceptor, a request mocking and intercepting tool. This time, I built something new to address a pain I’ve personally felt (and heard from dozens of QA, frontend, and platform teams): making OpenAPI specs actually useful during development. API contracts just sit around as docs often. What if you could 'activate' them, instantly have a realistic, hosted mock server-with contract validation, smart test data, and early usage? So I made _Mockaroo for OpenAPI_, but with brains. It spins up a hosted mock server from your spec in one click. It: - Generates…
2025 · beeceptor.com · its alternatives →
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IBANgen▲2Synthetic IBANs for QA, staging and fintech tests
Jun 2026 · ibangen.com · its alternatives →
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I made an API mocking tool that imports a schema, populates fake data, then runs a local server. This is helpful for testing APIs or advanced prototyping. A demo video is here: https://www.loom.com/share/abad2cdf325e4e0b9addea1e14406166?... There’s two fun things about this tool 1. the complete lack of configs and schema annotations. i.e. you don’t need to learn faker-js. You just need your existing GraphQL schema and to to swap out the server URL in your frontend code. 2. the depth. Your fake objects have relationships to other fake objects. And in proxy mode, real…
2023 · github.com · its alternatives →
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Progressive Web App for generating mocked data from an OpenAPI specification - Fredx87/openapi-mock-generator
2020 · github.com · its alternatives →
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Hi HN, I built the first version of Mocktail years ago. I recently came back to the project, and after a pretty substantial rebuild, v4 is now out. Mocktail is a free and open-source, self-hosted mock API server with a built-in dashboard and database, packaged as a single ~25 MB binary. You can run it locally or on your own infrastructure — no account or hosted service required. You can define endpoints and responses, generate realistic data per request, customize headers, status codes and latency, and inspect incoming requests in real time. With v4, I also added MCP support, so coding…
Aug 2026 · getmocktail.com · its alternatives →
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Go (Golang) Fake Data Generator for Struct. [Notes]This repository is archived, moved to the new repository https://github.com/go-faker/faker - bxcodec/faker
2019 · github.com · its alternatives →
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Generate realistic mock data for apps - quick & easy!
2025 · mock-data.com · its alternatives →
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Fake server, Consumer Driven Contracts and help with testing performance from one configuration file with zero system dependencies and no coding whatsoever - quii/mockingjay-server
2015 · github.com · its alternatives →
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Generate realistic mock data for apps - quick & easy!
2025 · mock-data.com · its alternatives →
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Hey HN, We just shipped a new AI-powered feature... BUT the "AI" piece is largely in the background. Instead of relying on a chatbot, we've integrated AI (with strict input & output guardrails) into a workflow to handle two specific tasks that would be difficult for traditional programming: 1. Identifying the most relevant base URL from HAR files, since it would be tedious to cover every edge case or scenario to omit analytics, tracking, and other network noise. 2. Generating synthetic data for API requests by passing the API context and faker-js functions to GPT-4. The steps are broken down…
2024 · docs.multiple.dev · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →